There are different kinds of future sight. The kind of future sight that just tells you when you’re boned like Oedipus is not the kind you want. I recommend threatening to never play with this dungeon master again unless they give you one of the good kinds.

There are different sorts of careless. There’s leaving classified documents in your car. And then there’s forgetting to refill the cyanide gas dispenser in the boot after the last time something got in there.

Seriously.
In the Wizard of Oz, that is the full name of the Wizard as given in one of the books. It was revealed in the fourth Oz book, Dorothy and the Wizard in Oz. As this is one of the books written by Baum himself, it can be taken as canon.

True, he did have both names. But in The Emerald City of Oz, when he drank from the Water of Oblivion, he forgot everything — including the name Roquat. The next time we see him, although he has finally recovered from drinking the Water, he is still going by the new name Ruggedo.

Not that this excuses any of the other continuity issues between the books.

Yeh yeh yeh yeh yeh yeh yeh yeh
The trunk is so dark, the lid has been closed,
And we’re confused on how we’ve been hosed.
We went a-looking for shadow-gov man.
We dove in to hide out, and now we’ve been canned.
So, come on, we’ll take a trunk ride!
(Trunk ride!)
Come on and crawl in side by side,
Come on, we’ll take a trunk ride!

It’s cramped and its chilly, is that a spare tire?
We’re in big trouble, position is dire.
Relying too much on poor second sight,
We’re shrouded in darkness that isn’t at night.
So, come on, we’ll take a trunk ride!
(Trunk ride!)
Come on and crawl in side by side,
Come on, we’ll take a trunk ride!

Ah, but sometimes the most powerful people can become careless. They’ve put so many layers of security between themselves and the world that they simply assume they are untouchable. They make little mistakes, and little mistakes open the door to bigger ones.